Antenna System Work Instructions v1.21

WORK INSTRUCTION Indonesia

Document:

Indosat Project Work Instruction GSM - DCS ULTRASITE ANTENNA SYSTEM WORK INSTRUCTIONS

REFERENCE DOCUMENTS

ANTENNA INSTALLATION

FEEDER INSTALLATION

RET AND MHA INSTALLATION

BIRD PROOFING

ANTENNA LINE COMMISSIONING

PERFORMING SWEEPS

ADDITIONAL INFORMATION

ATTACHMENTS

Antenna System Work Instruction V 1.0 Copyright © Nokia Networks

Page 1 / 60

WORK INSTRUCTION Disclaimer Due to continued progress in methodology, design and manufacturing, the contents of this document are subject to revision without notice. Nokia assumes no legal responsibility for any error or damage resulting from the use of this manual. This document has been produced to describe the specific requirements for Antenna System Testing for the Optus 3G Turnkey Rollout – Australia.


Page 2 / 60

WORK INSTRUCTION

TABLE OF CONTENTS

1.

REFERENCE DOCUMENTS

5

2.

ANTENNA LINE CONFIGURATIONS

6

2.1

MORAN or Optus only site, No RET or MHA

6

2.2

MORAN or Optus Only Site With RET and MHA

7

2.3

INNER Site With RET and MHA

8

3.

ANTENNA INSTALLATION

9

3.1

Preliminary

9

3.2

Assembly/Installation

9

3.3 Alignment. 3.3.1 Down Tilt 3.3.2 Antenna Azimuth 3.3.2.1 Method 1 – Landmark Method 3.3.2.2 Method 2 – Artificial Landmark Method 3.3.2.3 Method 3 3.3.3 Results 3.3.4 Completion of Work

10 10 10 10 11 11 11 12

3.4

12

Magnetic Declinations of Australian Capital Cities

3.5 Feeder Connectors 3.5.1 Tools 3.5.2 Materials 3.5.3 Weather Proofing the Connector

13 13 13 13

3.6 Grounding Kit 3.6.1 Tools 3.6.2 Materials 3.6.3 Grounding Kit Installation 3.6.4 Weather Proofing the Grounding Kit

13 13 13 14 14

3.7 Dual-MHA, RCU, Smart Bias-T and Lighting Protector Installation 3.7.1 Smart Bias-T and Lighting Protector Installation 3.7.1.1 MHA and Bias-T are not used 3.7.1.2 MHA and Bias-T are used 3.7.2 Dual MHA Installation 3.7.3 RCU Installation

15 15 15 15 15 15

3.8 Labels 3.8.1 Jumper Cables In WBTS Head on Co-Located Site 3.8.2 Jumper Cables In WBTS Head on MORAN Site 3.8.3 RF Cable Labels 3.8.4 Kathrein RET

16 16 16 17 18


Page 3 / 60

WORK INSTRUCTION 3.9 Bird proofing Feeders 3.9.1 Bird proofing Standards. 3.9.2 Monopoles 3.9.3 Lattice/Free Standing/Guyed Towers/Water Tanks 3.9.4 Rooftops

19 19 19 19 20

3.10

21

RF Feeder Numbering (Labeling)

3.11 Microwave Equipment Labeling 3.11.1 Microwave Transmission – Functional Entity (FE) Labeling

21 21

4.

22

ANTENNA LINE COMMSSIONING INTRODUCTION

4.1

Purpose

22

4.2

Target Group

22

4.3

Prerequisites

22

4.4 Test Equipment 4.4.1 Software 4.4.2 Instruments 4.4.3 Documentation

23 23 23 24

4.5 SETUP and callibration of sitemaster 4.5.1 Checking the Installation 4.5.1.1 Entering Cable Parameters 4.5.2 Performing a Calibration

25 25 26 26

4.6 Performing Sweeps 4.6.1 Sweep Order and Summary 4.6.2 Purpose 4.6.3 Sweep 1 – Cable Loss (NodeB – MHA) 4.6.4 Sweep 2 - Distance To Fault (Whole Antenna Line) 4.6.5 Sweep 3 – Return Loss (Whole System)

29 29 29 30 32 34

4.7

37

Additional Information


Page 4 / 60

WORK INSTRUCTION 1.

REFERENCE DOCUMENTS NOKIA PRODUCT DOCUMENTATION Nokia UltraSite GSM BTS Indoor User Manual Nokia FlexBus User Manual Nokia Hopper User Manual INDOSAT DOCUMENTATION

INDOSAT – NOKIA PROJECT SPECIFIC DOCUMENTATION WBTS Site Work Instructions


Page 5 / 60

WORK INSTRUCTION 2.

ANTENNA LINE CONFIGURATIONS

2.1


Page 6 / 60

WORK INSTRUCTION

2.2

BTS Antenna Mounting FRAME TYPE (Tower Site)


Page 7 / 60

WORK INSTRUCTION 2.3

2.2 BTS Antenna Mounting (Tower Site)


Page 8 / 60

WORK INSTRUCTION 2.3 Antenna Types & Specifications

KATHREIN 730378 (GSM)

KATHREIN 739630 (GSM)


Page 9 / 60

WORK INSTRUCTION ADC VM65-7 (GSM)

ADC XW65 – 5 (DCS)


Page 10 / 60

WORK INSTRUCTION

ADC ANTENNA DOWNTILT KIT


Page 11 / 60

WORK INSTRUCTION ANTENNA INSTALLATION SEQUENCE (TOWER /MINIPOLE / MONOPOLE) 2.4

BTS – Microwave Antenna Mounting Brackets

3.

Ensure that the correct antenna mounting bracket hardware has been delivered for the site and carefully inspect all metalwork for manufacturing or galvanizing defects. 1) Hoist and assemble all components securely on the tower in the specified positions , double checking that all mounting hardware is torque tightened to approx 60nM. 2) NOTE :: All BTS and microwave antenna mounting brackets must be installed before the feeder cables to remove any possibility of damage.

3.1

Preliminary 1) Unpack the Antenna(s), check the condition of delivered items and report any damage or deficiencies immediately to Nokia. Check that the Antenna Type Numbers on the boxes delivered to site match those detailed in the site specific data. 2) Note down which antennas are for each sector if there is a mix of different types, and the associated function of the antenna,if dual polarity is not used eg Tx/Rx, RxDiv., Tx/RxDiv 3) Remove Antenna Factory Test Certificate from each antenna and also mark each certificate with the Sector and function eg: Tx/Rx. Insert certificates into relevant section of the Site Folder. 4) NOTE:: Remove any metal fasteners from the antenna cardboard boxes and use as a protective floor covering for the equipment cabin / room during site installation.

3.2

Assembly/Installation 1) Assemble antenna mount and down tilt assembly as per Kathrein / ADC installation instructions. 2) If MHA is / are used, determine position of the unitr in relation to antenna. Determine the jumper cable length from the MHA to antenna allowing for azimuth changes of +/- 30 Deg. A Jumper length of approximately 1.5 Meters suits most installations. However some installations may require longer jumpers, (seek approval from Nokia). Note: MHA may be positioned on antenna mounting pole without obstructing any azimuth changes. 3) Feeders must have a straight attachment path as possible to the MHA and be secured to prevent movement in windy conditions.. 4) Secure pulley block & tackle to head frame to allow antennas to be hoisted safely. 5) Install each antenna on the antenna mount, monopole type, tower type or rooftop type in accordance with the Manufacturers Installation Instruction Sheet supplied with each Antenna and as per the construction drawing supplied.

INSERT PIX HERE OF JUMPER SECURING AND MHA 6) Check that the correct microwave dish / frequency / flexible waveguide have been delivered and free from damage. Note serial numbers if applicable. Assemble dish / head unit as per manufacturers instructions ensuring the correct launcher polarity has been set. Hoist carefully to avoid damage and secure to mounting bracket / pole.


Page 12 / 60


Alignment.

3.3.1

BTS Antenna Down Tilt

3.3.2



Check if the BTS antenna used require mechanical or electrical downtilt adjustment



Mechanical Down tilt: is set by adjusting the deviation from perpendicular at the rear of the antenna with an inclinometer. This inclinometer should be accurate within +- 0.5 degrees. The type and model of the inclinator should be noted in site folder. Check antenna installation sheet for setting electrical downtilt.



NOTE: the down tilt bracket of an antenna cannot be used instead of an inclinometer because it cannot be guaranteed that the mounting pole is perpendicular.



Simple, easy to use, accurate Inclinometer.

BTS Antenna Azimuth Three methods apply for the azimuth alignment of antennas. The method used should be noted on the antenna installation report. The antenna azimuth tool (sighting device) can be purchased from various suppliers. One such suggested supplier is ‘Alan Dick & Company’ on the Internet where the following model can be purchased online. If this link doesn’t work, try a regular search engine using ‘antenna azimuth tool panel antenna’ as keywords.


Page 13 / 60

WORK INSTRUCTION 3.3.2.1

Method 1 – Landmark Method 1. Using a true north map. A line should be drawn from the antenna at the bearing stated in the RF plan. 2. Another line should be drawn for the antenna to another known landmark. This landmark should be over 500 meters from the antenna, but must be on the same map page. 3. The angle between the two lines should be measured using a protractor 4. Using an adjustable sighting device. Set the angle measured on the map on the sighting device. 5. Line the antenna, sighting it at the chosen landmark through the device 6. Record all information in the site folder.

3.3.2.2

Method 2 – Artificial Landmark Method 1. Where no landmark is visible from the site or appears on your map, an artificial landmark can be made at least 100m from the site at a known bearing from the site. 2. Steelwork of the site will distort the magnetic field , so a magnetic compass cannot be used in the vicinity of the site. 3. An accurate bearing of an artificial marker (landmark) can be gained by finding an open space (away from any buildings or cars or other metals) where a marker can be placed, and a compass back bearing of the site can be taken. 4. By taking the bearing of the site from the marker, the bearing of the marker from the site can be calculated as the opposite (i.e. +or-180 degrees difference). 5. Convert the magnetic bearing to a true north bearing, because the antenna azimuth will always be given as a true north bearing. 6. Taking into account the magnetic declination of your position (consult your map) or the true north bearing of the marker is then known. (True North Bearing = Magnetic North Bearing – Magnetic Declination). 7. Now use METHOD 1 above to complete the alignment. 8. Record all information in the site folder

3.3.2.3

Method 3 This is the least preferred method and must be checked by an independent third party. 1. Where a sighting device cannot be fitted. A back bearing should be measured from a distance greater than 100 meters (if possible). 2. From the back bearing point, using binoculars, the man at the antenna should be instructed which way to point the antenna so that it has the correct azimuth. 3. This should be checked by reversing the roles of the two men and also by an independent third party. 4. Record all information in the antenna installation report.


Page 14 / 60

WORK INSTRUCTION NOTE

3.3.3



If the required amount of tilt is nominated as Electrical make the adjustments in accordance with the procedure in the Manufacturers Installation Instruction Sheet supplied with each antenna.



If the required amount of tilt is nominated as Mechanical make the adjustments in accordance with the procedure in the Manufacturers Installation Instruction Sheet supplied with each antenna.

Results Type needed antenna line information in the site folder.

3.3.4

Completion of Work 1. Remove any floor protection and remove all rubbish. 2. Clean room and or surrounding site area. 3. Arrange for any rubbish to be removed from site.

3.4

Magnetic Declinations of Indonesian Cities Jakarta Semerang Yogyakarta Surabaya

East of true North East of true North East of true North East of true North

Note: (Source is ……an online calculator is available at the following website: http://www.

TN Example for : Magnetic North is "MN 1.752o East of True North" (or +1.752 o West of True North) as shown

Example for Magnetic North is "+12.697o East of True North" as shown


TN MN

Page 15 / 60

WORK INSTRUCTION

2.9 RF Feeder Installation 1. Feeder cable will be supplied to most sites on a cable drum. It is crucial that the drum is maintained in an upright position at all times to avoid cable crushing.


Page 16 / 60

WORK INSTRUCTION 2.

The RF connectors are in turn installed on the cable, following the manufacturers instructions, and each feeder is hoisted, in turn, up the tower with one person controlling the drum rotation.

Feeder Cable Drum Support Drum jacks & axle must be used to support the drum while rolling out feeder

Feeder Cable Drum Unrolling

Feeder must be unrolled from top of the drum and the drum rotated in the indicated direction. There must be one person controlling the rotation at all times


Page 17 / 60

WORK INSTRUCTION

Connector Installation 3.4.1

Tools 1. Knife. 2. Clean Cloth. 3. Hacksaw (fine tooth) or Andrews Cutting tool 4. Fixed wrench for connector tightening. 5. Torque wrench (25nM) for feeder connector tightening.

Rosenburger 1 5/8 Connector


Page 18 / 60

WORK INSTRUCTION Additional Connector Installation Notes

Notes additional to Installation Instructions

1

Cut an accurate square end on the cable with a fine tooth hacksaw or a commercial cable cutter.If a hacksaw is used the cable must be tilted downwards to eliminate cutting swarf from entering the centre conductor

2

Remove 60mm of outer insulation

60mm

3


Cut an accurate square end on the cable on a corrigation crest with a fine tooth hacksaw if a commercial cutter is not used.The cable must be tilted downwards to eliminate cutting swarf from entering the centre conductor

Page 19 / 60

WORK INSTRUCTION

4 1

2

3

4

4mm Cut back outer insulation approx 4mm more than the instructions indicate.

5

Dress the inner and outer copper conductors with a fine grade file then clean all swarf and foreign material from the foam dielectric using a copper wire brush Antenna System Work Instruction V 1.0 Copyright © Nokia Networks

Page 20 / 60

WORK INSTRUCTION

Max 5mm gauge

These two wrenches are essential for the installation of 1 5/8 connectors

NOTE:: Indosat do not provide any connector installation tools

55mm

45mm

6

1 5/8 Cable

45mm Wrenches 55mm


IMPORTANT The 55mm wrench is held static and the connector body is screwed together turning the 45mm wrench

Page 21 / 60

WORK INSTRUCTION

7

15/8 Cable

IMPORTANT Ensure that the protective plastic cover is in place and seal with rubber tape

IMPORTANT Apply 2 layers of electrical tape over the area indicated

The cable is now ready for hoisting and installing

RF Feeder Cable Bending

∙ Extreme care must be taken when bending coaxial cable and strict specifications must be observed. See chart below for minimum bending radius


Page 22 / 60

WORK INSTRUCTION RF Feeder Clip Securing Cable Type

Support Distance Spacing Prefered

Max

1/4” Superflex

150mm

200mm

3/8” Superflex

150mm

200mm

1/2” Superflex

250mm

300mm

1 /2” Feeder

500mm

600mm

7/8” Feeder

900mm

1000mm

1-5/8” Feeder

1000mm

1400mm

Weatherproofing

WEATHER PROOFING NEEDED

All ourdoor antenna line connections, grounding kits and wall entries have to be weather proofed. Connections where weather proofing is needed: Feeder to feeder Feeder to antenna and MHA Feeder to EMP and combiner (if located outdoor) Grounding kits have to be sealed according to manufacturer instructions. Wall feed through has to be properly sealed. Ensure that all connectors are on correct torque before sealing!


Page 23 / 60

WORK INSTRUCTION

3.4.2

Materials 1. Self-amalgamating tape, 25 mm wide. (3M Scotch No23 ‘or’ Scotch 130C). 2. PVC insulation tape, 15 mm wide. (3M Scotch Super 33+).

3.4.3

Weather Proofing the Connector 1. After completing the connection according to the instruction of the connector manufacturer, check the connection surfaces are free of all dirt, grease and moisture and clean with cloth if necessary. 2. When the connection surfaces are clear and dry, fasten connectors together and tighten to the specified torque of 25nM. 3. Clean the connection and both cables 50 mm either side of connectors. Be sure there is no dirt, grease or moisture on the surfaces which going to be cover with tape. 4. Cover the two wraps of PVC insulation tape. Start wrapping 40 mm behind the feeder or RET connector make every wrap overlap 50% in each direction. 5. Wrap the connection with self-amalgamating tape shiny side up, for two layers. Start wrapping 40 mm behind the feeder connector. One wrap each direction, overlapping 50 %. Make the wraps so that the stretched tape is tight on the connector. First wrap should end 50mm behind the other side of connector and second wrap from right to left. 6. Cover the two wraps of self-amalgamating tape with two wraps of PVC insulation tape. Start wrapping 10 mm behind of self-amalgamating tape make every wrap overlap 50% in each direction.

Antenna End Jumper Weather Proofing 1. CONNECTION 2. CONNECTION AMALGAMATING 3. CONNECTION

TO BE TAPED USING APPROVED TYPE OF INSULATION TAPE TO BE TAPED USING APPROVED TYPE OF SELF TAPE TO BE TAPED USING APPROVED TYPE OF INSULATION TAPE CABLE TIE 5 0

3. WRAPS OF INSULATION TAPE (OVERLAPPING 50%)


2 0

2. STRETCH WRAPPED WRAPS OF SELF AMALGAMATING TAPE (STRETCH 30%, OVERLAPPING 50%)

Page 24 / 60

WORK INSTRUCTION

Should use Nokia supplied tapes. Self amalgamating, insulation tape and a cable tie is needed

Start self amalgamating round from top (same with feeder cable)

Apply two rounds of self amalgamating tape, taping will end to top

Tape on feeder 50mm Start insulation round from down and apply three round of tape,so taping will end to the top


Page 25 / 60

WORK INSTRUCTION Feeder Connector Weather Proofing 1. CONNECTION TO BE TAPED USING APPROVED TYPE OF INSULATION TAPE 2. CONNECTION TO BE TAPED USING APPROVED TYPE OF SELF AMALGAMATING TAPE 3. CONNECTION TO BE TAPED USING APPROVED TYPE OF INSULATION TAPE 2 0

5 0

5 0

2 0

1. ONE WRAP OF INSULATION TAPE (OVERLAPPING 50%) 2. TWO STRETCH WRAPPED WRAPS OF SELF AMALGAMATING TAPE (STRETCH 30%, OVERLAPPING 50%)

3.5

3. THREE WRAPS OF INSULATION TAPE (OVERLAPPING 50%)

Grounding Kit Tools and materials required.

3.5.1

Tools 1. Knife. 2. Screw driver for earth strap tightening. 3. Box wrench for earth strap tightening. 4. Clean Cloth.

3.5.2

Materials 1. Earthing kit - (In the case the earthing kit does not include the waterproofing materials, the following materials should be available). 2. Self-amalgamating tape, 25 mm wide. (3M Scotch No23 ‘or’ Scotch 130C). 3. PVC insulation tape, 15 mm wide. (3M Scotch Super 33+).


Page 26 / 60

WORK INSTRUCTION 3.5.3

Grounding Kit Installation The feeder earth kits must be installed as follows: 1. Top of the vertical feeder install approx 500-1000mm from the connector 2. At the base of the vertical cable rise approx 500-1000mm from the bend 3. Cabin entry point, (Gland Plate). 4. Every 30 meters when possible. CHK CHK CHK 5. Install earth Kits above earth bar (upstream) 6. Install earth wire as directly as possible to earth bar. 7. Install heat shrink on the earth crimp cable shoe connection . 8. Clean earth bar before installation.

Top Feeder Grounding Kit

Antenna Jumper Cables

Feeder label Feeder Grounding Kit

FEEDER GROUNDING BUSBAR

Feeders have to be grounded approx 5001000mm after antenna jumper connection. All feeder grounding kits have to be connected to feeder grounding busbar . Feeder grounding kit manufacturer material have to be used. All cables have to be labeled on both end of the cable. Proper tools have to be used during grounding cable installation. All cables have to be fixed properly.


Page 27 / 60

WORK INSTRUCTION Lower Feeder Grounding Kit Feeders have to be grounded approx. 500-1000mm before horizontal bending. All feeder grounding kits have to be connected to feeder grounding busbar . Feeder grounding kit manufacturer material have to be used. Used cable lugs have to be suitable for used grounding cable. All cables have to be labeled on both end of the cable. Proper tools have to be used during grounding cable installation. All cables have to be fixed properly.

Feeder Grounding Kit

Cabin / Room Feeder Entry Grounding Kit Entry Gland Plate

Feeder Bridge

Cabin To Tower Earthbar mounted directly above the feeder bridge support pole

Feeders have to be grounded before feeder entry of cabin / equipment room. All feeder grounding kits have to be connected to feeder entry grounding busbar . Feeder grounding kit manufacturer material have to be used. All cables have to be labeled on both end of the cable. Proper tools have to be used during grounding cable installation. All cables have to be fixed properly.

Down earth cable


Page 28 / 60

WORK INSTRUCTION

Correct Install


Page 29 / 60


Weather Proofing the Grounding Kit Wrap the earth clamp with the mastic provided approximately 30 mm either side of the clamp. Apply the tape firmly, stretching 30%, overlapping 50% on each rotation upwards and back until a minimum 3 layers have been applied over the whole area. Note: Allow the last 2 turns of tape to relax before wrapping them (prevents peeling).


Page 30 / 60


Entry Gland plate The RF feeders must enter the cabin / room according to the Indosat standard

Cabin Layout 1

SPARE

SPAR E

SPAR E

SPAR E

4110

4120

4130

TRS

4112

4122

4132

GND

SPARE

SPARE

SPARE

SPARE

4110

4120

4130

TRS

4112

4122

4132

GND

RECTIFIER

O DO

R

Sector 1 Sector 2 Sector 3

Feeder Entry Gland Plate Layout Antenna System Work Instruction V 1.0 Copyright © Nokia Networks

Page 31 / 60

WORK INSTRUCTION

Cabin Layout 2

SPARE

TRS

GND

SPARE

4110

4112

SPARE

SPARE

4120

4130

4122

4132

SPAR E

SPAR E

SPAR E

SPAR E

TRS

4130

4120

4110

GND

4132

4122

4112

RECTIFIER DO OR

Sector 3 Sector 2 Sector 1

Feeder Entry Gland Plate Layout


Page 32 / 60

WORK INSTRUCTION BTS Rack Antenna Connection Layout

S1

S3

S2

RXD

RXD

RXD

TX/RX

TX/RX

TX/RX

BTS Rack Front

Jumpers Cables have to be installed as straight as possible. Avoid additional bendings. Follow manufacturers bending instructions. Proper tools have to be used during jumper installation. All cables have to be fixed properly. Prefabricated jumpers have to be used always when possible. On existing sites most practical solution should be used. Think about future.


Page 33 / 60

WORK INSTRUCTION

Bias T Installation (If Required)

DCS 1800 Bias T - WBVB

GSM 900 Bias T - WBVC

Voltage Standing Wave Ratio (VSWR) monitoring is optional in Ultra Bias Tee at the moment VSWR monitoring can be performed only on antenna lines including Tx, on BCCH antennas Pure Rx diversity antenna (TCH) can not be monitored by VSWR -"Comparing RSSI Value" will do it in CX3 from BTS The fixed VSWR thresholds are as follows: VSWR 2.6 or lower : antenna operation OK VSWR greater than 2.6 : indicates antenna fault An alarm is generated in case of antenna fault when VSWR threshold exceeded. -> alarm raised in the O&M system and the affected TRXs turned off. VSWR is designed to detect major faults in antenna line, not to be a high accuracy measurement feature Note a big RL difference between the antenna line with MHA (e.g.15 dB) and without MHA (e.g. 20 dB)! After BTS or sector reset the Bias Tees can automatically be 'placed' to pure Rx line by default -> use "Preferred BCCH TRX" feature 'Call drop rate' and 'Handover success rate' are still good features/ references to make sure antenna line is OK


Page 34 / 60


Bias-T Installation Ensure that the correct Bias T modules have been supplied for the site frequency band. See identifying illustrations above Bias T are installed on all antenna feeders at the antenna connections on top of the Ultrasite BTS rack to afford lightning discharge protection for the coaxial cable centre conductor, as well as providing feeder VSWR monitoring. They are necessary if MHA’s are used on the antenna(s) As the modules are mounted directly on top of the BTS rack, no extra earthing of the units is required All 7/16 RF connectors must be torque tightened to 25nM Extra care is needed when installing the DC and VSWR SMB connectors as the rack interface sockets are easily damaged if the plugs are not inserted exactly perpendicularly

Bias T components


Page 35 / 60

WORK INSTRUCTION Bias T VSWR and DC SMB Connector Interface on the BTS Rack Top

Bias T VSWR & DC Interface Layout


Page 36 / 60

WORK INSTRUCTION Nokia Bias T & Masthead Amplifier Identification Codes

Mast Head Amplifiers Increase coverage (50….100%) Balance Rx-Tx link in case of uplink limitation Improve system sensitivity Decrease mobile transmitted power MHA & Bias Tee interfaces smoothly with Nokia BTS’s No extra PDU’s or complicated cable sets needed Type approved with Nokia BTS, to meet GSM spec (in terms of blocking, intermodulation and sensitivity)

MHA Product Detail Antenna System Work Instruction V 1.0 Copyright © Nokia Networks

Page 37 / 60

WORK INSTRUCTION MHA MNGA900. Rx:880-915 MHz. incl. mounting kit

POLE INSTALLATION


Page 38 / 60

WORK INSTRUCTION WALL INSTALLATION

All MHA equipment have been fully tested in production; no need to repeat stand alone testing in the field, visual check is enough. Check that you are using correct sub band (900/1800!) Only vertical installation allowed! MHA water drainage is located at the bottom. Max. 1/2” jumper size allowed to connect to the MHA 25...30 Nm torque for MHA connectors allowed Improper installation can cause intermittent alarms or decrease functionality, e.g. water in connection, however the MHA can be OK! Touching the 7/16” connectors can decrease system performance! MHA grounding is always recommended In coastal areas and on islands, use extreme weather proofing for all connections (see Nokia Antenna Bulletin)


Page 39 / 60


MHA Installation Smart Bias-T is connected to antenna connectors on the roof of WBTS. If it is not possible to install Smart Bias-T to antenna connectors on the roof of BTS, it is installed between jumper cable and feeder cable.


Page 40 / 60

WORK INSTRUCTION MHA Gain Adjustment

Open NOKIA BTS HW Configurator Choose masthead amplifier type: MHA, MNxx, or None for each antenna MHA  Talk Family MHAs (12dB) MNxx  Ultrasite MHA (33dB) If UltraSite MNxx is chosen, the gain/attenuation of the BTS/DVD can still be adjusted between low and high (approx. -3.6 dB… +6.4 dB). Either Cable Loss or Gain Settings value can be changed. Operation and alarm current thresholds adjust accordingly Finally, configuration must be sent to BTS for it to take effect


Page 41 / 60

WORK INSTRUCTION


Page 42 / 60

WORK INSTRUCTION Antenna Line Cable Labelling Nokia supplies a complete prepack laminated label set for each site. Note that each sector label set has a different colour NOTE:: All label mounting cable ties must be trimmed flush



Cable marking set for BTS label set consists of:

-12 pcs

small (10´40) series 1xxx labels for earthing cables

-8 pcs

small (10´40) series 3xxx labels for DC supply cables

-42 pcs

big (22´50) series 4xxx labels for RF cables

-8 pcs

small (10´40) series 5xxx labels for PCM cables

-4 pcs cables

small (10´40) series 6xxx labels for external alarm

-1 bag (100 pcs)

small (2,4´92 mm) black cable ties

Mounting of the large RF feeder label


Page 43 / 60

WORK INSTRUCTION

RF Feeder Label Chart for GSM 900 & DCS 1800 Label

Label

GSM 900

DCS 1800

Inside Shelter

G4110

Inside Shelter

Sector 1 Tx / Rx Sector 1 Rxd or Tx / Rxd

Sector / Feeder

Position

Colour

Supplied

Sector 1 Tx / Rx

D4110

White

2

Sector 1 Rxd or Tx / Rxd

G4111

D4111

White

2

Middle of Tower

G4110

D4110

White

3

Middle of Tower

G4111

D4111

White

3

Sector 1 Tx / Rx

Antenna Jumper

G4110

D4110

White

2


Antenna Jumper

G4111

D4111

White

2

Sector 2 Tx / Rx

Inside Shelter

G4120

D4120

Red

2


Inside Shelter

G4121

D4121

Red

2

Sector 2 Tx / Rx

Middle of Tower

G4120

D4120

Red

3


Middle of Tower

G4121

D4121

Red

3

Sector 2 Tx / Rx

Antenna Jumper

G4120

D4120

Red

2


Antenna Jumper

G4121

D4121

Red

2

Sector 3 Tx / Rx

Inside Shelter

G4130

D4130

Blue

2


Inside Shelter

G4131

D4131

Blue

2

Sector 3 Tx / Rx

Middle of Tower

G4130

D4130

Blue

3


Middle of Tower

G4131

D4131

Blue

3

Sector 3 Tx / Rx

Antenna Jumper

G4130

D4130

Blue

2


Antenna Jumper

G4131

D4131

Blue

2

Note :: Labels must be orientated in same direction and positioned to be clearly seen


Page 44 / 60

WORK INSTRUCTION

3.7

RF Feeder Numbering (Labeling) Feeders to be labeled to show each of the frequency bands being carried on a coax cable run. Refer to instructions and numbering detail given in Nokia document Cabling and Wiring Schedule.

3.8

Microwave Equipment Labeling The microwave Outdoor Unit (OU) label and the Indoor Unit (IU) must be labeled in accordance with instructions given in Nokia document Ultrasite Cabling & Wiring Schedule.

4.

ANTENNA LINE COMMSSIONING INTRODUCTION This instruction describes how to make Distance to Fault (DTF), Return Loss (RL) and Cable Loss (CL) measurements on GSM / DCS antenna systems using the Anritsu Site Master S331C. Antenna System Work Instruction V 1.0 Copyright © Nokia Networks

Page 45 / 60

WORK INSTRUCTION The antenna system tests should be performed as part of the antenna system installation before the cable connectors are sealed. After the test results have been saved in the Site Master, it is possible to obtain hard copies by importing the measurements to a PC. Necessary software and serial cable are enclosed with the Site Master. 4.1

Purpose The purpose of the antenna system tests is to verify the quality of the antenna system installation. The tests include measuring the feeder length in order to be able to calculate the feeder system loss. The test results are recorded in the site folder and on CD ROM / Floppy disk

4.2

Target Group The target group for this instruction is antenna system installers and Ultrasite commissioning engineers Engineers working on Nokia products or systems must have the necessary training and competence in order to perform their work correctly.

4.3

Prerequisites The following conditions must apply before performing the tests: 1. Knowledge about existing health and safety information 2. Site Installation Documentation prepared and available 3. Site access details 4. Feeder and jumper cables installed 5. Antenna and feeder cables connected to the jumper cables 6. Site grounding and lightning protection completed


Page 46 / 60


Test Equipment This section describes software, tools, instruments, and documentation recommended for the activities.

4.4.1

Software Software for Anritsu Site Master S331C is found in the transportation bag or can be downloaded from http://www.us.anritsu.com. Ensure that the latest version (currently 6.51) of Handheld Software Tools is used on the PC which the sweeps are downloaded to. This is also available at the Anritsu website. http://www.us.anritsu.com/downloads/default.aspx?kind=prod&ID=595&DownType=6

4.4.2

Instruments It is recommended to use the Anritsu Site Master for the antenna system tests.


Page 47 / 60

WORK INSTRUCTION

4.4.3

Documentation Site-specific information is found in the Site Installation Documentation. Information on how to use the Site Master is found in the Anritsu Site Master user’s guide. The result of the measurements is entered into the site folder.


Page 48 / 60


SETUP and callibration of sitemaster

4.5.1

Checking the Installation 1. Verify that the antenna system installation is in accordance with the Site Installation Documentation. 2. Check visually that no cables or connectors are damaged and that all cables (feeders and jumper cables) are correctly labeled. 3. Check that connectors are correctly terminated. 4. Check that the minimum bending radii of the feeders and jumper cables are correct according to the manufacturer’s specifications. 5. Verify the antenna azimuths and tilts against the Site Installation Documentation. Consider magnetic influences from nearby metallic objects and deviation from the magnetic North when using the compass. 6. Check that the correct cables are connected to the correct antenna. 7. Report any inconsistencies immediately to the Nokia TI Co-coordinator and seek direction on rectification if required.


Page 49 / 60

WORK INSTRUCTION 1. 4.5.1.1

Entering Cable Parameters To achieve accurate test results, the correct cable parameters must be entered. The required parameters for the actual feeder type are the following: 1. Velocity factor 2.

Attenuation (dB/m)

Note: Frequency bands ::GSM 900 . Use attenuation values at

DCS 1800

/? Mhz

1. Press MODE (2) and select DTF–SWR by using the Up/Down arrow key (17). Press ENTER (14). 2. Press the DTF AID soft key (1). 3. Use the Up/Down arrow key (17) to select CABLE LOSS. Press ENTER (14). 4. Enter the attenuation in dB / meter (see table below) for the type of feeder being tested and press ENTER (14). 5. Use the Up/Down arrow key (17) to select PROP VEL. Press ENTER (14).

6. Enter the relative velocity (see table below) for the type of feeder being tested and press ENTER (14).

4.5.2

Manufacturer

Cable Type

Andrew Andrew Andrew Andrew Andrew Andrew H+S H+S H+S H+S H+S H+S RFS RFS RFS

LDF4-50A FSJ4-50B LDF5-50A AVA5-50 LDF6-50A LDF7-50A Sucofeed 1/2" Sucofeed 1/2" HighFlex Sucofeed 7/8" LA Sucofeed 7/8" HighFlex Sucofeed 1 1/4" LA Sucofeed 1 5/8" LA LCF78-50JA LCF114-50JA LCF158-50A

Cable Loss dB / meter 0.110 0.181 0.063 0.058 0.046 0.035 0.112 0.157 0.056 0.063 0.047 0.037 0.059 0.048 0.037

Velocity Factor 0.88 0.81 0.89 0.91 0.89 0.92 0.88 0.85 0.90 0.87 0.87 0.91 0.90 0.89 0.90

Performing a Calibration To achieve accurate test results and to compensate for Test Port Extension Cables, the Site Master must be calibrated. The frequency band must be set before the calibration can be performed.


Page 50 / 60

WORK INSTRUCTION A broader range allows a higher resolution of the measured result. To select the frequency band according to the feeder length used. Note: The Site Master must be calibrated each time the frequency band is changed. The Site Master must also be calibrated if the following symbols are shown in the display: “CAL OFF” or “C”.

1.

Test Port Extension Cable

2.

OPEN

3.

SHORT

4.

LOAD (50 ohm)

23.

RF Out / Refl 50 ohm

To perform a calibration, a PRECISION OPEN/SHORT/LOAD device is required. Note: For correct calibration results, ensure that the OPEN / SHORT / LOAD is connected at the end of the Test Port Extension Cable, at the same point where the test object is connected. 1. Connect the Test Port Extension cable to the RF Out/Refl 50 ohm connector. Antenna System Work Instruction V 1.0 Copyright © Nokia Networks

Page 51 / 60

WORK INSTRUCTION 2. Ensure that the correct frequency band is selected. 3. Press the START CAL key (21). 4. Connect the OPEN and press ENTER (14). Wait for the measurement to complete. Follow the instructions on the screen. 5. Connect the SHORT and press ENTER (14). Wait for the measurement to complete. Follow the instructions on the screen. 6. Connect the LOAD (50 ohm terminator) and press ENTER (14). Wait for the measurement to complete. 7. When the calibration is complete, disconnect the calibration device from the Test Port Extension Cable. After the calibration, the display will show CAL ON as long as the calibration is valid.


Page 52 / 60


Performing Sweeps

4.6.1

Sweep Order and Summary There are 4 sweeps to be taken in the following order:

ORDER

4.6.2

TYPE

CABLE TESTED

FREQUENCY

TERMINATION

1

Cable Loss

Bottom Jumper & Main Feeder

Short

2

Distance To Fault

Bottom Jumper & Main Feeder

Load

3

Return Loss

Entire System + MHA (if installed)

Antenna

Purpose 1. Determine measured actual system loss for RF requirements in planning tool. 2. Determine measured actual cable loss from NodeB to MHA for commissioning data. 3. Determine length of feeder for commissioning data. This is to be measured from NodeB to MHA and then length of top tail added to measurement from sweep. This is due to the fact that DTF measurements through the MHA will be distorted. A bypass cable or adapter can introduce faults not normally in the system that will fail sweeps unnecessarily. 4. Determine RL of entire system with all components in place.

Note: ATTACHMENT A: ANTENNA LINE SYSTEM INSTALLATION & COMMISSIONING DATA IN SITE FOLDER


Page 53 / 60


Sweep 1 – Cable Loss (NodeB – MHA)

1. Site Master 2. Jumper Cable 3. Feeder Cable 4. MHA 5. Short 6. Antenna FREQUENCY:

MHz

CABLE:

Bottom jumper and main feeder.

LIMIT:

None

MARKER:

M1 - Set to valley

OUTPUT:

Average cable loss value to be entered into site folder as Feeder Line Loss (dB) and used for NodeB commissioning.

Example: Cable loss sweep.


Page 54 / 60

WORK INSTRUCTION Sweep to be named: JVSiteNumber_CellID_CL


Page 55 / 60


Sweep 2 - Distance To Fault (Whole Antenna Line) This measurement contains 2 components: 1. Sweep to measure from NodeB to MHA. 2. Physical measurement of top tail

1. Site Master 2. Jumper Cable 3. Feeder Cable 4. MHA 5. Load (50 Ohm termination) 6. Antenna FREQUENCY:

MHz

CABLE:

Bottom jumper and main feeder.

LIMIT:

1.05

MARKER:

M1 - Set to junction of bottom tail and main feeder M2 – Set to top end of main feeder


Page 56 / 60

WORK INSTRUCTION OUTPUT:

Measurement from sweep to be added to physical measurement of top tail. Summary of feeder cable length value M2 – M1, and a length of tail cable between MHA and antenna to be added to site folder as Feeder Line Length (m) and used for commissioning. Distance to be used to determine RL sweep limit.

Example: Distance to fault sweep. Sweep to be named: ?????? Any part of the sweep that exceeds the limit line is a fault and should be rectified and the sweep retaken for submission.


Page 57 / 60

WORK INSTRUCTION

4.6.5

Sweep 3 – Return Loss (Whole System)

1. Site Master 2. Jumper Cable 3. Feeder Cable 4. MHA 5. Antenna FREQUENCY:

MHz

CABLE:

Whole system

LIMIT:

To be determined from table below

MARKER:

M1 – 1920 MHz M2 – 1980 MHz M3 – 2110MHz M4 – 2170MHz M5 – Set to max RL in pass bands of sweep

OUTPUT:

Max RL value to be added to site folder.

Note: Kathrein RET system must be commissioned, before RL measurement. If it cannot be done, frequency band is 2110 MHz – 2170 MHz.


Page 58 / 60

WORK INSTRUCTION

Table 1. Antenna system with lightning protection return loss values. FEEDER LENGTH (meters)

1/2” RL Limit (dB)


1 5/8” RL Limit (dB)

< 10m

- 13

- 13

-

10 – 20 m

- 14

- 13

-

20 – 30 m

- 15

- 14

- 13

30 – 40 m

- 16

- 15

- 14

40 – 50 m

- 17

- 16

- 14

50 – 60 m

-

- 17

- 15

Table 2. Antenna system with MHA return loss values. FEEDER LENGTH (meters)



1 5/8” RL Limit (dB)

< 10m

- 12

- 12

-

10 – 20 m

- 13

- 12

-

20 – 30 m

- 14

- 13

- 12

30 – 40 m

- 15

- 14

- 13

40 – 50 m

- 16

- 15

- 13

50 – 60 m

-

- 16

- 14

Example: Return loss sweep. Sweep to be named: ??????? Any part of the sweep that exceeds the limit in the pass bands is a fault and should be rectified and sweep retaken for submission.


Page 59 / 60


Additional Information 

Site master should be connected directly to bottom tail for all sweeps.



Resolution of 517 should be used at all times.



Any sweeps taken whilst instrument is out of calibration will be failed. ie: CAL OFF / Temp CAL warning



If a cable is required to connect Site master then it should be a phase stabilised test cable (these can be purchased from Anritsu) and the calibration should be done with this cable connected.



When performing DTF sweeps a precision (35 dB) load should be used. This will avoid chasing phantom faults due to an inferior load.



The sweep range for DTF sweeps should be kept to 10m or less than the actual length of the feeder.



Faults over limit at 0m on a DTF usually indicate poor connection of instrument to cable and will be failed.



If a RL sweep fails it is prudent to replace antenna with a termination on the feeder to confirm integrity of feeder as a first point in the fault finding process.



ALL relevant information in the site folder and commissioning process is to come from the sweeps. It is not acceptable to use data from the drawings or PCCS.


Page 60 / 60

Antenna System Work Instructions v1.21

Recommend Documents